90 entries under original topic. ×
| significant(adjective, superior, big, unusual, important) | |
| constitutive(important, serious, basic, prime) | |
| early(adjective, simple, head, beginning) | |
| embryonic(cause, simple, basic, fundamental) | |
| germinal(cause, opening, first, early) | |
| indispensable(adjective, important, significant, serious) | |
| initiatory(opening, basic, first, early) | |
| necessary(adjective, body, material, big, important) | |
| underived(adjective, rough, important, significant) | |
| bottom(adjective, important, significant, essential) | |
| headmost(adjective, order, heavy, important, head) | |
| intrinsic(adjective, important, significant, essential) | |
| requisite(adjective, important, significant, essential) | |
| autochthonous(first, previous, local, initial) | |
| first-string(good, head, better, prime) | |
| inceptive(adjective, head, beginning, prime) | |
| inchoate(first, early) | |
| infant(first, previous, early, initial) | |
| initiative(first, early) | |
| integral(adjective, body, material, important, significant) |
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| APA | Smart Define. (2016). primary thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/primary/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "primary thesaurus" https://smartdefine.org/primary/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2016, primary thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/primary/thesaurus/synonyms>. |
| MLA | Smart Define. "primary thesaurus" 29 March 2016. Web. 24 September 2026. <https://smartdefine.org/primary/thesaurus/synonyms> |